<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script>
    const first = () => (new Promise((resolve, reject) => {
        console.log(3)
        let p = new Promise((resolve, reject) => {
            console.log(7)
            setTimeout(() => {
                console.log(5)
                resolve(6);
            }, 0)
            resolve(1);
        })
        resolve(2);
        p.then((arg) => {
            console.log(arg)
        })
    }))
    first().then((arg) => {
        console.log(arg)
    })
    console.log(4)
</script>
</html>